Improvement in reversible percolators



UNITED STATES PATENT EEICE.

SAMUEL WOOLSTON, OF VINCENTOWN, NEW JERSEY, AND 'WILLIAMCOR- FIELD, OFPHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN REVERSIBLE PERCOLATO'RS.

Specification forming part of Letters Patent No. 100,232, dated February22, 1870.

T0 all whom it may concern:

Be it known that we, SAMUEL WOOLSTON, 0t` Vincentown, in the county ot'Burlington and State otl New Jersey, and WILLIAM COR- FIELD, of the cityof Philadelphia and State of Pennsylvania, have invented an Improvementin Percolators, of which the following is a specification.

Our invention consists in forming a percolator of three chambers, theupper to contain the liquid to be percolated, the lower to receive it aspercolated, and the cen tra] chamber to contain the material throughwhich the said liquid is to be percolated, the said upper and lowerchamberI to be capable of assuming each the relative position of theother by the reversal of the percolator.

Figure 1 represents an external view ot' the machine embodying ourinvention. Fig. 2 is a skeleton view ofthe same.

A and B each represent a partition in the interior of the machine,constructed ot' Wiregauze or any perforated material that will allow thetransmission of the liquid from one chamber to the other.

N is the upper chamber of the percolator; K the middle, and M the lower,chamber of the same.

E is an air-pipe from the upper portion ot' chamber M to the upperportion of chamber N.

Fisa valve by which said pipe may be opened or closediat pleasure.

C is a like pipe, which upon the reversal of the percolator connects theupper portion of chamber N with upper portion of chamber M.

D is a'valve by which said pipe may be opened or closed. y a y Gr is acock through which the liquid can be introduced into chamber N when saidchamber is uppermost, or drawn therefrom upon the reversal of thepercolator.

H is a like cock, bearing the same relation toward chamber M.

I is an opening into chamber K for the introduction ofthe materialthrough which the liquid is to be percolated. Y

The mode of operation is as follows: The material through whichtheliquid is to be pereolatedr having been introduced into chamber Kthrough the opening I, said opening is to be closed until thepercolating process is finished.

The percolator is then placed in position withv through chamber K andbeen received into chamber M, valve F is closed and valve D opened. Thepercolator may then be reversed, so as to place chamber M uppermost,when the liquid will he repercolated through chamber K, the reversingprocess to be repeated as often as may be required, or until K chamberis exhausted of such portions ot' its contents as the percolating liquidwill dissolve or displace, ei'ecting the object desired more rapidly andthoroughly and with less loss by evaporation than any other method inuse.

What we claim as our invention isrIhe reversible percolator with thepartitions A and B and the air-pipesE and C, substantiall y as and forthe purpose hereinbefore set forth.

SAMUEL wooLsToN. WILLIAM eoEEIELD.

Witnesses:

FRANK B. LEWIS, JOHN L. N. BRATrroN.

